SANREX Rectifier Module DF60LB80

08/07/2020

What are the central air conditioning performance that users care about

For any brand of central air-conditioning equipment, as a user, there are actually three points:

02/25/2021

What's wrong with the freezer not cooling

There are four main reasons: the first is the lack of refrigerant and the compressor has problems; the second is the problem of the power cord of the freezer; the third is the frost in the evaporator of the freezer; the fourth is that the storage in the freezer is too full. Of course, no matter what the reason is, you should find a professional to help repair the loophole or add refrigerant.

07/15/2020

What you need to know about the electrical connection of Copeland refrigeration compressors

Please pay attention to the direction of the terminals in the junction box (single-phase: R, S, C; three-phase: T1, T2, T3). In order to ensure the normal start-up and operation of the Copeland refrigeration compressor, the power supply voltage cannot be lower than 10% of the Copeland compressor rated voltage.

08/02/2020

New refrigerant R450A is used for performance study of ejector refrigeration cycle

The new refrigerant R450A is a substitute for R134a, which is environmentally friendly and reliable. There are still few studies on it.

08/15/2020

What are the matters needing attention when installing rock wool board in cold storage

Many businesses now have their own cold storage and install semi-hermetic refrigeration compressors, through which food can be well preserved. So what should we pay attention to when installing rock wool board in the cold storage.

06/29/2020

Suggestions for troubleshooting of compressor with liquid start

07/01/2020

Analysis of the main advantages of Copeland compressors

Analysis of the main advantages of Copeland compressors Copeland compressors not only have a high reputation, but also stand out among well-known brands. It is precisely because Copeland compressors have the advantages that most compressors have or do not have.

08/11/2020

How to maintain the lubrication system of the chiller

In the operation system of the chiller, more attention is paid to the refrigerant circulation system, the chilled water circulation system and the electrical control system of the refrigerator. The lubrication system is often overlooked. As everyone knows, this system is also very important to the chiller.

09/22/2020

Thyristor solid medium voltage soft starter

I. Overview In our country's coal mine, petroleum, chemical industry, steel, power generation, water supply, cement building materials and other fields, there are a large number of 3KV, 6KV, 10KV and other voltage levels of medium and high voltage AC asynchronous motors. A large part of them do not require speed regulation, but need to solve the starting problem of these high-voltage large motors.

01/15/2025

Refrigerator compressor working principle, wiring diagram, structure

The core component of the refrigerator is the compressor. If there is no compressor with good quality and technology, it is not a good refrigerator. At present, many products on the market advertise the use of high-quality compressors, so which compressor brands are in China, and which failures are prone to occur? I will introduce you one by one in the following!